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. 2023 Dec 14;8(51):49037–49045. doi: 10.1021/acsomega.3c06756

Table 3. Combustion Experiments for 7M4MC at 298.15 K and po = 0.1 MPa.

  7M4MCa
m (7M4MC)/g 0.0408401
m (cotton)/g 0.0005911
m (platinum)/g 0.2311213
ΔTc/K 0.891702
ϵ (calor) (−ΔTc)/kJ –1.14245
ϵ (cont) (−ΔTc)/kJ –0.00111
ΔUign/kJ 0.00418
ΔUIBP/kJ –1.13938
ΔUcorr/kJ 0.00081
(–mΔcuo)(cotton)/kJ 0.01002
(–mΔcuo) (7M4MC)/kJ –1.12855
Δcuo (7M4MC)/kJ g1 –27.6334
average value ⟨−27.6912 ± 0.0162⟩/kJ g1
a

m is the mass corrected for buoyancy using densities listed in Table 1, ΔTc is the corrected temperature rise, ϵ (cont) is the energy equivalent of the contents of the bomb, ΔUign is the ignition energy, and ΔUIBP is the energy of the isothermal bomb process, which was calculated by ΔUIBP = [ϵ (calor)(−ΔTc) + ϵ (cont)(−ΔTc) + (ΔUign) (ΔUcorr)]. ΔUcorr is the correction to standard state and Δcuo (7M4MC) is the 7-methoxy-4-methylcoumarin mass energy of combustion. The uncertainty corresponds to the expanded uncertainty with a confidence level of 95%.